prequest: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/prequest - from package: python-pyramid

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/prequest - from package: python-pyramid

You may install the required package with command apt-get install {package}

Error in other languages:
prequest: bevel nie gevind nie
prequest: comandă negăsită
prequest: comando não encontrado
prequest: commande introuvable
prequest: command not found
prequest: käsku ei ole
prequest: không tìm thấy lệnh
prequest: komanda nerasta
prequest: Kommando nicht gefunden.
prequest: kommandot finns inte
prequest: komut yok
prequest: nie znaleziono polecenia
prequest: níor aimsíodh an t-ordú
prequest: no se encontró la orden
prequest: no s'ha trobat l'ordre
prequest: opdracht niet gevonden
prequest: parancs nem található
prequest: perintah tidak ditemukan
prequest: príkaz nenájdený
prequest: příkaz nenalezen
prequest: команда не найдена
prequest: командата не е открита
prequest: 命令找不到
prequest: コマンドが見つかりません